cant start new version

[ronslam]

I used to run old version ok. Updated to latest, now it wont start. Please interpret below -
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.

C:\Program Files\Calibre2>calibre-debug -g
calibre 8.3 embedded-python: True
Windows-10-10.0.14393-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.14393')
Python 3.11.12
Windows: ('10', '10.0.14393', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre-debug.exe
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 23, 0) && DeDRM (10, 0, 3) && Package KFX (from KFX Input) (2, 23, 0) && KFX metadata reader (from KFX Input) (2, 23, 0) && From KFX (2, 23, 0) && KFX Input (2, 23, 0)
Failed to import PyQt module: PyQt6.QtWidgets with error: DLL load failed while importing QtWidgets: The specified procedure could not be found.
Traceback (most recent call last):
File "runpy.py", line 198, in _run_module_as_main
File "runpy.py", line 88, in _run_code
File "site.py", line 83, in <module>
File "site.py", line 78, in main
File "site.py", line 50, in run_entry_point
File "calibre\debug.py", line 234, in main
File "calibre\gui_launch.py", line 72, in calibre
File "calibre\gui_launch.py", line 51, in register_with_default_programs
File "bypy-importer.py", line 279, in exec_module
File "calibre\gui2\__init__.py", line 15, in <module>
ImportError: cannot import name 'QApplication' from 'qt.core' (C:\Program Files\Calibre2\app\bin\python-lib.bypy.frozen\qt\core.pyc)

C:\Program Files\Calibre2>

[JSWolf]

Originally Posted by ronslam

Microsoft Windows [Version 10.0.14393]

Your version of Windows 10 is 6 years out of date. It could very well be that your version of Windows 10 is too old. Update your Windows 10 to the latest version (22H2/19045) and then try running calibre again.

I know that if Windows 10 is too old, it would not run calibre 7.

Why would you not update your Windows to the latest version?

[ronslam]

Good point (bit wary of Windows updates)
Removed 8.3.
Installed Calibre version 7.26.0 and that runs.
But doesn't remove DRM although DeDRM (10.0.3) installed

[DNSB]

Originally Posted by ronslam

Good point (bit wary of Windows updates)
Removed 8.3.
Installed Calibre version 7.26.0 and that runs.
But doesn't remove DRM although DeDRM (10.0.3) installed

Perhaps you should try the autorelease flavour of DeDRM 10.0.0.9.

[Majutsushi]

Originally Posted by ronslam

Good point (bit wary of Windows updates)

You should rather be wary of the big security risk of running an unpatched Windows version.

[JSWolf]

Originally Posted by ronslam

Good point (bit wary of Windows updates)
Removed 8.3.
Installed Calibre version 7.26.0 and that runs.
But doesn't remove DRM although DeDRM (10.0.3) installed

You should upgrade your Windows. Going back because your paranoid is a very bad idea. There's nothing to be paranoid about. It also means you won't ever get any new fixes or features in calibre. I have the latest Windows 10 and latest Windows 11 and they both work.

There is no reason not to update Windows. If you do, you should be able to run calibre 8.

[ronslam]

I just checked in Settings - it says my Windows is up to date, last update 12-Feb-25.

Installed later DeDRM as suggested (10.0.9) but still doesn't remove DRM

[ronslam]

I can see now DeDRM wont work on library books (pretty sure it did in the past).

Also to import KFX-ZIP I have to put in a serial number somewhere.

[JSWolf]

Originally Posted by ronslam

I just checked in Settings - it says my Windows is up to date, last update 12-Feb-25.

Installed later DeDRM as suggested (10.0.9) but still doesn't remove DRM

Windows 10 14393 i not up-to-date. Go here to get your Windows updated.

https://www.microsoft.com/en-us/soft...load/windows10

[chaley]

Originally Posted by ronslam

I used to run old version ok. Updated to latest, now it wont start. Please interpret below -

File "bypy-importer.py", line 279, in exec_module
File "calibre\gui2\__init__.py", line 15, in <module>
ImportError: cannot import name 'QApplication' from 'qt.core' (C:\Program Files\Calibre2\app\bin\python-lib.bypy.frozen\qt\core.pyc)

C:\Program Files\Calibre2>

This error usually means the calibre installation was corrupted. Simply try installing it again. It sometimes helps to delete \Program Files\calibre2 before doing the reinstall.

[ronslam]

Thanks JSW - I looked at the link and it says it doesn't apply to Enterprise Edition (which mine is - 1607)

[JSWolf]

Originally Posted by ronslam

Thanks JSW - I looked at the link and it says it doesn't apply to Enterprise Edition (which mine is - 1607)

Your Enterprise edition is still out-of-date. https://learn.microsoft.com/en-us/wi...se-information

Here's where you can get the latest Windows 10 Enterprise edition. https://www.microsoft.com/en-us/eval...-10-enterprise

Calibre shows youe Windows 10 as build 14393 and that's an old build.

[ronslam]

Sorry, I was mistaken. Mine is not Enterprise Edition. Will look into updating as suggested

[ronslam]

Tried the update.
Now I remember why I am wary of Microsoft updates.
Failed - error code 0xc06d007f - then wants to start again.
Nice programming!

[JSWolf]

Originally Posted by ronslam

Tried the update.
Now I remember why I am wary of Microsoft updates.
Failed - error code 0xc06d007f - then wants to start again.
Nice programming!

Try running the system file checker.

https://support.microsoft.com/en-gb/...3-966e85d4094e